Authorities surrounded the building, and a helicopter flew overhead. A SWAT team and police dogs moved through the building, finding no other injured people and no other suspects.

The college currently has about 180 students. About 40-50 people were in the building at the time of the shooting, police said.

Police and emergency personal respond to a shooting victim at Stevens Institute of Business and Arts in St. Louis on Tuesday, Jan. 15, 2013. (Photo: AP)

​KTVI adds that the shooter was an “on-again, off-again” part-time student of the school, and that he fired on a longtime financial adviser in an office with a handgun.

Police say they believe the financial adviser was targeted, and that it was not a random act of violence.

“He was familiar to faculty and staff,” Police Chief Sam Dotson said. “The victim and the shooter were familiar with each other. They knew each other. This did not appear to be random. It appeared to be targeted.”

Police direct a group of people away from the area as they respond to a shooting at the Stevens Institute of Business and Arts in St. Louis on Tuesday, Jan. 15, 2013. (Photo: AP)

Police arrived within a minute of the call about the shooting to find students huddled under desks and in closets. The administrator had made it to an elevator, according to the Associated Press, while the gunman was found injured in a stairwell.

“We’ve trained all of our officers in active shooter response,” Dotson said. Officers quickly escorted out students and staff and then made sure no other gunmen were inside.

Both men are currently at the hospital, and Dotson said he does not know if their conditions are life-threatening.

KTVI reported on the story as the situation developed:

​The Associated Press contributed to this report. Updates will be added.